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Jérôme OLLIER

Social-ecological vulnerability to climate change and risk governance in coastal fishin... - 0 views

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    In Bangladesh, fishing communities are one of the most climate-vulnerable groups, though they play an important role in economic development. The main objective of this study was to identify vulnerability by exploring exposure (i.e., lack of regulating services or household capitals), susceptibility (i.e., lack of access to provisioning services), and lack of resilience (i.e., lack of alternative livelihoods and capacity) and to explore adaptation options, and challenges to understand risk governance. The study considered 45 published research articles for analysis following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Keywords were used in combinations (e.g., fishing communities and Bangladesh) to identify and screen published articles. Articles published in English focusing on vulnerability and/or risk governance, published between 2011 and 2022, featuring original empirical data or a comprehensive systematic review, and published in peer-reviewed journals were included. Articles were excluded if vulnerability and risk governance were evaluated but did not fit or match the definition used in this study. The study found frequent disasters and ocean warming caused different stresses, such as reduced fish catch and income, and resulted in an increased risk of fisheries conflict. Moreover, fishing communities have limited access to properties, modern fishing equipment, financial institutions, and fisher-centered organizations. Adaptation strategies include ecosystem-based (e.g., plantation, payment for ecosystem services) and non-ecosystem-based (e.g., temporary migration, getting help from neighbors) approaches. To boost fish production, the Government of Bangladesh instituted fishing restrictions and social safety net programs (e.g., distributing rice during the fishing restrictions); both initiatives were helpful. However, the conservation policies are not being implemented properly, and there is no particular social welfa
mesbah095

Guest Post Online - 0 views

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    Article Writing You Can Join this Site for Your Article & guest post, Just Easy way to join this site & total free Article site. This site article post to totally free Way. Guest Post & Article Post live to Life time only for Current & this time new User. http://guestpostonline.com/
Jérôme OLLIER

Potential Plastic Accumulation Zones in the Indian Coastal Seas - @FrontMarineSci - 0 views

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    Plastics account for ~80% of the litter in many marine environments (MORALES-CASELLES et al., 2021) and, a suitable example of a transboundary problem. Several decades of waste mismanagement have made plastics ubiquitous in the global ecosystem and one of the largest growing environmental problems (KERSHAW, 2016). Given the growing evidence of the threats caused by plastics and the projected alarming accumulation in the oceans, environmental managers are urgently pursuing sustainable solutions to reduce plastic. One solution to plastic pollution is identifying the accumulation zones (i.e., hotspots of plastic accumulation). Accumulation zones are also critical for our long-term understanding of the dynamics of plastics in the marine system and identifying vulnerable ecosystems (Lebreton et al., 2017). However, few reports have focused on this aspect of plastic research, particularly from the Indian coast. At the same time, there was a surge in marine plastic publications (80 articles); however, 65% of the study was from beaches. This article addressed this gap by identifying potential plastic accumulation zones along the Indian coast based on published literature. Studies in the field of oil dispersion, plankton connectivity, and marine safety recovery provide an opportunity to understand how oceanographic features may govern the transport of plastic in the ocean (VAN SEBILLE et al., 2020).
Jérôme OLLIER

INCOIS air-sea Flux Reference System onboard ORV Sagar Nidhi: overview and initial resu... - 0 views

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    Accurate estimation of air-sea fluxes is essential for advancing ocean modeling, observational studies, and understanding air-sea interactions. To address this need, the Indian National Centre for Ocean Information Services (INCOIS) developed and deployed a Flux Reference System (INCOIS-FRS) onboard ORV Sagar Nidhi. This article provides an overview of the system, its components, data acquisition methods, flux computation techniques, and preliminary results. The INCOIS-FRS integrates an Eddy Covariance Flux System (ECFS) and an Automated Weather Station (AWS). The ECFS collects high-frequency (20 Hz) data to directly estimate the latent heat flux (LHF), sensible heat flux (SHF), and momentum flux (τ) using the Eddy Covariance (EC) method. The AWS records meteorological and oceanic variables at 1 Hz, enabling flux estimates using the COARE 3.5 algorithm. A spectrally flat Class-A pyranometer and a pyrgeometer provide climate-grade measurements of downward shortwave and longwave radiation, which, combined with EC-derived SHF and LHF, yield the net heat flux. This article presents preliminary results inferred from data collected by INCOIS-FRS during a cruise in the Arabian Sea from 1-16 July 2023. Data from this system are useful for validating model outputs and satellite observations, refining flux parameterizations, marine boundary layer studies, and improving air-sea interaction models. INCOIS-FRS represents a first step toward equipping more oceanographic platforms, both crewed and uncrewed, with flux reference units. Future plans include expanding such deployments to enhance observational coverage and support research on air-sea fluxes across the Indian Ocean and other regions.
Jérôme OLLIER

Via @UBCoceans - Status and challenges for sustainable billfish fisheries in the Wester... - 0 views

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    Billfish species (families Istiophoridae and Xiphiidae) are caught in artisanal, recreational, and commercial fisheries throughout the Western Indian Ocean region. However, data and information on the interactions among these fisheries and the ecology of billfish in the WIO are not well understood. Using an in-depth analysis of peer-reviewed articles, grey literature, observation studies, and authors' insider knowledge, we summarize the current state of knowledge on billfish fisheries in 10 countries. To describe historical and current trends, we examined fisheries statistics from governmental and non-governmental agencies, sportfishing clubs' reports, diaries of sportfishing captains, and the catch and effort databases of the Indian Ocean Tuna Commission. We highlight two key points. First, billfish fisheries in the Western Indian Ocean are highly diverse, comprising two distinct segments-coastal and oceanic. However, data are poor for most countries with significant gaps in information especially for sport and artisanal fisheries. Second, the evidence assembled showed that billfish species have immense social, cultural, and economic value. Swordfish are targeted by both large-scale and semi-industrial fisheries, while other billfish species, particularly marlin, are highly sought after by sport fisheries in most countries. Our paper provides a comprehensive review of billfish fisheries and available information in the context of the WIO underscoring the need to strengthen data collection and reporting, citizen science, and collaborative sustainable development and management of billfish.
Jérôme OLLIER

Diversity and community structure of microzooplankton in the eastern Indian Ocean durin... - 0 views

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    Microzooplankton (MZP) are an important part of the microbial food web and play a pivotal role in connecting the classic food chain with the microbial loop in the marine ecosystem. They may play a more important role than mesozooplankton in the lower latitudes and oligotrophic oceans. In this article, we studied the species composition, dominant species, abundance, and carbon biomass of MZP, including the relationship between biological variables and environmental factors in the eastern equatorial Indian Ocean during the spring intermonsoon. We found that the MZP community in this ocean showed a high species diversity, with a total of 340 species. Among these, the heterotrophic dinoflagellates (HDS) (205 species) and ciliates (CTS) (126 species) were found to occupy the most significant advantageous position. In addition, CTS (45.3%) and HDS (39.7%) accounted for a larger proportion of the population abundance, while HDS (47.1%) and copepod nauplii (CNP) (46.4%) made a larger contribution to the carbon biomass. There are significant differences in the ability of different groups of MZP to assimilate organic carbon. In this sea area, MZP are affected by periodic currents, and temperature is the main factor affecting the distribution of the community. The MZP community is dominated by eurytopic species and CNP. CTS are more sensitive to environmental changes than HDS, among which Ascampbelliella armilla may be a better habitat indicator species. In low-latitude and oligotrophic ocean areas, phytoplankton with smaller cell diameters were found to occupy a higher proportion, while there was no significant correlation between the total concentration of integrated chlorophyll a and the biological variables of MZP. Therefore, we propose that the relationship between size-fractionated phytoplankton and MZP deserves further study. In addition, the estimation of the carbon biomass of MZP requires the establishment of more detailed experimental methods to reflect the real situ
Jérôme OLLIER

Pathways to integrate Indigenous and local knowledge in ocean governance processes: Les... - 0 views

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    The Introduction of this paper argues that current coastal and ocean management approaches like marine spatial planning (MSP) often do not adequately acknowledge and integrate Indigenous and Local Knowledge (ILK). This is problematic because how humans value and perceive coastal and marine resources is integrally linked to how they use and manage these resources, especially in adapting to social-ecological change. Coastal and marine resources are situated within complex social-ecological systems that are culturally, economically, historically and politically embedded. Therefore, management approaches have to integrate transdisciplinary and contextual perspectives in order to be relevant, sustainable and adaptive. Following extensive research in Algoa Bay, South Africa this article highlights several pathways to bridge the gap between existing ILK and current coastal and ocean management approaches. The Methods section discusses how the authors worked in tandem with a bottom-up (engaging with Indigenous and local coastal and marine resource users) and top-down (engaging with coastal governance authorities and practitioners) approach. In order to answer the primary research question "How can ILK be integrated into area-based ocean management like MSP"? the authors employed arts-based participatory methods as well as in-depth interviews and workshops with coastal governance authorities and practitioners over several months. This work then culminated in a one-day multi-stakeholder workshop which brought both ILK holders and coastal authorities and practitioners together to collaboratively identify pathways to integrate this knowledge into coastal and ocean management. In the Results and Discussion section the authors present and discuss five co-identified pathways to integrate ILK in coastal and ocean management which include: adopting contextual approaches to coastal and ocean management; increasing transparency and two-way communication between coastal authorities and
Jérôme OLLIER

Analysing Pakistan's fisheries legislation and institutional framework: integrating Sus... - 0 views

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    International Fisheries Law (IFL) provides innovative approaches to fisheries governance at national levels. The emergence of Sustainable Development Goal 14 (SDG 14) is phenomenal for fisheries because it creates new means for implementing IFL. Under SDG 14, fisheries governance for sustainable fisheries has become a complex and challenging task for any state. Developing States like Pakistan are struggling to achieve SDG 14 with new approaches to fisheries governance. The current situation of fisheries governance in Pakistan motivated the content of this research paper. This research paper adopted the comprehensive literature review (CLR) methodology to analyse existing fisheries governance mechanisms in Pakistan. Besides CLR, the paper also analysed a 'case study' on fisheries governance of Pakistan entitled 'National Policy and Strategy for Marine Fisheries. Furthermore, one hundred sixty-seven research articles and national and international legislation on fisheries governance from 2010 - 2023 are analysed. The results of the CLR methodology suggested that an extensive integrated mechanism under a comprehensive framework should be developed for fisheries governance. The framework forwarded a policy mechanism incorporating sustainable development goals with SDG 14 that should be implemented coherently for sustainable fisheries. The discussion followed the analysis and suggested that regional to local and bottom-up and top-down approaches in fisheries governance are required to address the challenges to sustainable fisheries in Pakistan. The conclusion of the discussion portrayed that future research related to fisheries governance in Pakistan shall be based on the practical implementation of SDG 14.
Jérôme OLLIER

Projected response of the Indian Ocean Dipole to greenhouse warming - JAMSTEC - 0 views

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    In recent years, enormous socioeconomic damage has been wreaked by recurrent abnormal weather events around the world. The seedbed for this abnormal weather is climate variability events on a massive spatiotemporal scale - those that cover thousands of kilometers and continue over months and years. Here we will review an article featured on the cover of the November 28, 2013 issue of Nature Geoscience on research predicting how a climate variability event in the tropical Indian Ocean, known as the Indian Ocean Dipole (IOD), will change with global warming in the future.
Jérôme OLLIER

WA divers asked to upload manta ray snaps for science - @UQ_News - 0 views

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    A University of Queensland scientist is calling for volunteer divers to photograph the underside of manta rays in waters off the Western Australian coastline and upload them to Facebook as part of a research project.
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    A University of Queensland scientist is calling for volunteer divers to photograph the underside of manta rays in waters off the Western Australian coastline and upload them to Facebook as part of a research project.
Jérôme OLLIER

Rising seas will drown mangrove forests - @uq_news - 0 views

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    Mangrove forests around the Indo-Pacific region could be submerged by 2070, according to international research published today.
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    Mangrove forests around the Indo-Pacific region could be submerged by 2070, according to international research published today.
Jérôme OLLIER

MH370 - where to search? - @GEOMA_en - 0 views

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    New ocean model simulations could refine the search area.
Jérôme OLLIER

Search for MH370 likely to end by August - @AFP via @MailOnline - 0 views

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    Search for MH370 likely to end by August.
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    Search for MH370 likely to end by August.
Jérôme OLLIER

Floating lab drills 1.5km below sea floor to study megaquakes - @newscientist - 0 views

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    Floating lab drills 1.5km below sea floor to study megaquakes.
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    Floating lab drills 1.5km below sea floor to study megaquakes.
Jérôme OLLIER

Via @echinoblog - Tamil Nadu - 200 kg of sea cucumbers seized; one held - @TheHindu - 0 views

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    Marine police of Coastal Security Group (CSG) have seized about 200 kg of sea endangered cucumbers, protected under Schedule I of the Wildlife Protection Act, 1972, and detained a man, who procured th
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    Marine police of Coastal Security Group (CSG) have seized about 200 kg of sea endangered cucumbers, protected under Schedule I of the Wildlife Protection Act, 1972, and detained a man, who procured th
Jérôme OLLIER

India Secures Seabed Mining Rights - @Mar_Ex - 0 views

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    India Secures Seabed Mining Rights.
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    India Secures Seabed Mining Rights.
Jérôme OLLIER

Fish recorded singing dawn chorus on reefs just like birds - @newscientist - 0 views

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    Underwater recordings of vocal fish off the Australian coast reveal an ocean choir composed of at least seven distinct choruses.
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    Underwater recordings of vocal fish off the Australian coast reveal an ocean choir composed of at least seven distinct choruses.
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